from pydantic_settings import BaseSettings
from functools import lru_cache


class Settings(BaseSettings):
    DATABASE_URL: str = "postgresql://whatsapp_admin:password@localhost:5432/whatsapp_central"
    REDIS_URL: str = "redis://localhost:6379"

    # DeepSeek AI (OpenAI-compatible API)
    DEEPSEEK_API_KEY: str = ""
    DEEPSEEK_MODEL: str = "deepseek-chat"
    DEEPSEEK_BASE_URL: str = "https://api.deepseek.com"

    API_GATEWAY_URL: str = "http://localhost:8000"
    WHATSAPP_CORE_URL: str = "http://localhost:3001"
    INTEGRATIONS_URL: str = "http://localhost:8002"

    class Config:
        env_file = ".env"


@lru_cache
def get_settings() -> Settings:
    return Settings()